Which to use
“nin” and “ninja” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #34,610
- “nin” frequency rank
- #8,700
- “ninja” frequency rank
- 43310
- confusion score
Side-by-Side Comparison
| Feature | nin | ninja |
|---|---|---|
| Definition | Affectionate name for a grandmother. | A person trained in ninjutsu, especially (historical) one used for espionage, assassination, and other tasks requiring stealth during Japan's shogunate period. |
Where the eye mixes nin and ninja
Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. nin runs 3 letters (CVC) against ninja's 5 (CVCCV) - the length gap alone is often enough to separate them once you know to check it.
Why the eye confuses nin with ninja
A purely visual mix-up. nin (/nɪn/) and ninja (/ˈnɪnd͡ʒə/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 2 extra letter(s) - “nin” sits inside “ninja”. Our composite confusion score for this pair is 43310, derived from the frequency rank of both members and their visual similarity.
nin is recorded at frequency rank #34,610, classified as anoun, pronounced /nɪn/. ninja is at rank #8,700, tagged as anoun, pronounced /ˈnɪnd͡ʒə/.
Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.
With a confusion score of 43310, this pair ranks #241,211 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of nin vs ninja
Shared letters: in. Private to "nin": -. Private to "ninja": aj.
"nin" · 3 letters · shape CVC · "ninja" · 5 letters · shape CVCCV
Known mistypes of this pair
- ninja ← innja · nijna · ninaj · ninjja · ninnja · nnija · nninja
Frequently Asked Questions
Can "nin" and "ninja" be used interchangeably?
Which is more common, "nin" or "ninja"?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "nin" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "ninja" - compare definitions side by side with the headword page. Word entry
- This pair ranks #241,211 of 530,003 scored English confusable pairs in this corpus vintage. Corpus statistics
- "nin" and "ninja" also get mixed up with nearby pairs, the highest-scored neighbour is "nin vs NPL". Nearby pair
- Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes
Confusion rank #241,211 of 530,003 scored English pairs, corpus vintage 2026-09-03, not spelling advice.